Required. The parent branch resource name, such as projects/{project}/locations/{location}/collections/{collectionId}.
If the caller does not have permission to list DataStores under this location, regardless of whether or not this data store exists, a PERMISSION_DENIED error is returned.
Query parameters
Parameters
pageSize
integer
Maximum number of DataStores to return. If unspecified, defaults to 10. The maximum allowed value is 50. Values above 50 will be coerced to 50.
If this field is negative, an INVALID_ARGUMENT is returned.
When paginating, all other parameters provided to DataStoreService.ListDataStores must match the call that provided the page token. Otherwise, an INVALID_ARGUMENT error is returned.
filter
string
Filter by solution type . For example: filter = 'solutionType:SOLUTION_TYPE_SEARCH'
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-06-27 UTC."],[[["\u003cp\u003eThis webpage details how to list DataStores associated with a project using the Discovery Engine API.\u003c/p\u003e\n"],["\u003cp\u003eThe HTTP request utilizes a \u003ccode\u003eGET\u003c/code\u003e method with a specific URL structure that includes \u003ccode\u003eparent\u003c/code\u003e as a required path parameter, defining the project, location, and collection.\u003c/p\u003e\n"],["\u003cp\u003eQuery parameters like \u003ccode\u003epageSize\u003c/code\u003e, \u003ccode\u003epageToken\u003c/code\u003e, and \u003ccode\u003efilter\u003c/code\u003e are available to control the list output, allowing pagination and filtering by solution type.\u003c/p\u003e\n"],["\u003cp\u003eThe request body must be empty for this operation, and a successful response will contain an instance of \u003ccode\u003eListDataStoresResponse\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eTo use this, you need the OAuth scope \u003ccode\u003ehttps://www.googleapis.com/auth/cloud-platform\u003c/code\u003e and the IAM permission \u003ccode\u003ediscoveryengine.dataStores.list\u003c/code\u003e on the parent resource.\u003c/p\u003e\n"]]],[],null,["# Method: projects.locations.collections.dataStores.list\n\n- [HTTP request](#body.HTTP_TEMPLATE)\n- [Path parameters](#body.PATH_PARAMETERS)\n- [Query parameters](#body.QUERY_PARAMETERS)\n- [Request body](#body.request_body)\n- [Response body](#body.response_body)\n- [Authorization scopes](#body.aspect)\n- [IAM Permissions](#body.aspect_1)\n\nLists all the [DataStore](/generative-ai-app-builder/docs/reference/rest/v1alpha/projects.locations.collections.dataStores#DataStore)s associated with the project.\n\n### HTTP request\n\n`GET https://discoveryengine.googleapis.com/v1alpha/{parent=projects/*/locations/*/collections/*}/dataStores`\n\nThe URL uses [gRPC Transcoding](https://google.aip.dev/127) syntax.\n\n### Path parameters\n\n### Query parameters\n\n### Request body\n\nThe request body must be empty.\n\n### Response body\n\nIf successful, the response body contains an instance of [ListDataStoresResponse](/generative-ai-app-builder/docs/reference/rest/v1alpha/ListDataStoresResponse).\n\n### Authorization scopes\n\nRequires the following OAuth scope:\n\n- `https://www.googleapis.com/auth/cloud-platform`\n\nFor more information, see the [Authentication Overview](/docs/authentication#authorization-gcp).\n\n### IAM Permissions\n\nRequires the following [IAM](https://cloud.google.com/iam/docs) permission on the `parent` resource:\n\n- `discoveryengine.dataStores.list`\n\nFor more information, see the [IAM documentation](https://cloud.google.com/iam/docs)."]]
